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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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45 using v8::Object; | 45 using v8::Object; |
46 using v8::Script; | 46 using v8::Script; |
47 using v8::String; | 47 using v8::String; |
48 using v8::Value; | 48 using v8::Value; |
49 | 49 |
50 using v8::internal::byte; | 50 using v8::internal::byte; |
51 using v8::internal::Address; | 51 using v8::internal::Address; |
52 using v8::internal::Handle; | 52 using v8::internal::Handle; |
53 using v8::internal::Isolate; | 53 using v8::internal::Isolate; |
54 using v8::internal::JSFunction; | 54 using v8::internal::JSFunction; |
| 55 using v8::internal::RegisterState; |
55 using v8::internal::TickSample; | 56 using v8::internal::TickSample; |
56 | 57 |
57 | 58 |
58 static struct { | 59 static struct { |
59 TickSample* sample; | 60 TickSample* sample; |
60 } trace_env = { NULL }; | 61 } trace_env = { NULL }; |
61 | 62 |
62 | 63 |
63 static void InitTraceEnv(TickSample* sample) { | 64 static void InitTraceEnv(TickSample* sample) { |
64 trace_env.sample = sample; | 65 trace_env.sample = sample; |
65 } | 66 } |
66 | 67 |
67 | 68 |
68 static void DoTrace(Address fp) { | 69 static void DoTrace(Address fp) { |
69 trace_env.sample->fp = fp; | 70 RegisterState regs; |
| 71 regs.fp = fp; |
70 // sp is only used to define stack high bound | 72 // sp is only used to define stack high bound |
71 trace_env.sample->sp = | 73 regs.sp = |
72 reinterpret_cast<Address>(trace_env.sample) - 10240; | 74 reinterpret_cast<Address>(trace_env.sample) - 10240; |
73 trace_env.sample->Trace(Isolate::Current()); | 75 trace_env.sample->Init(Isolate::Current(), regs); |
74 } | 76 } |
75 | 77 |
76 | 78 |
77 // Hide c_entry_fp to emulate situation when sampling is done while | 79 // Hide c_entry_fp to emulate situation when sampling is done while |
78 // pure JS code is being executed | 80 // pure JS code is being executed |
79 static void DoTraceHideCEntryFPAddress(Address fp) { | 81 static void DoTraceHideCEntryFPAddress(Address fp) { |
80 v8::internal::Address saved_c_frame_fp = | 82 v8::internal::Address saved_c_frame_fp = |
81 *(Isolate::Current()->c_entry_fp_address()); | 83 *(Isolate::Current()->c_entry_fp_address()); |
82 CHECK(saved_c_frame_fp); | 84 CHECK(saved_c_frame_fp); |
83 *(Isolate::Current()->c_entry_fp_address()) = 0; | 85 *(Isolate::Current()->c_entry_fp_address()) = 0; |
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386 CcTest::InitializeVM(TRACE_EXTENSION); | 388 CcTest::InitializeVM(TRACE_EXTENSION); |
387 v8::HandleScope scope(CcTest::isolate()); | 389 v8::HandleScope scope(CcTest::isolate()); |
388 CHECK_EQ(0, GetJsEntrySp()); | 390 CHECK_EQ(0, GetJsEntrySp()); |
389 CompileRun("a = 1; b = a + 1;"); | 391 CompileRun("a = 1; b = a + 1;"); |
390 CHECK_EQ(0, GetJsEntrySp()); | 392 CHECK_EQ(0, GetJsEntrySp()); |
391 CompileRun("js_entry_sp();"); | 393 CompileRun("js_entry_sp();"); |
392 CHECK_EQ(0, GetJsEntrySp()); | 394 CHECK_EQ(0, GetJsEntrySp()); |
393 CompileRun("js_entry_sp_level2();"); | 395 CompileRun("js_entry_sp_level2();"); |
394 CHECK_EQ(0, GetJsEntrySp()); | 396 CHECK_EQ(0, GetJsEntrySp()); |
395 } | 397 } |
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